Mortuary, Bolas's Citadel, Wild Cantor, and Vindictive Vampire

Prerequisites

• Mortuary on the battlefield
• Bolas's Citadel on the battlefield
• Wild Cantor on the battlefield
• Vindictive Vampire on the battlefield

Steps

1. Activate Wild Cantor by sacrificing it
2. When Wild Cantor dies, Mortuary and Vindictive Vampire trigger
3. Resolve the Mortuary trigger, putting Wild Cantor from your graveyard onto the top of your library
4. Resolve the Vindictive Vampire trigger, causing you to gain 1 life and dealing 1 damage to each opponent
5. Cast Wild Cantor from the top of your library by paying 1 life
6. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite damage
• Infinite lifegain triggers
• Infinite storm count